In Byte Addressable Memory, each address references exactly one unit of data. Which unit is it?

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Multiple Choice

In Byte Addressable Memory, each address references exactly one unit of data. Which unit is it?

Explanation:
In a memory system that is byte-addressable, an address refers to a single byte—the smallest chunk that can be fetched or stored in one memory operation. A byte is 8 bits, so each address gives you 8 bits of data. If you need a larger piece of data, like a word, you read several consecutive bytes and combine them. This is why a word is not the addressable unit in this scheme: a word is simply multiple bytes grouped together, depending on the architecture. A nibble (4 bits) or a single bit isn’t the addressable unit here either in standard byte-addressable memory.

In a memory system that is byte-addressable, an address refers to a single byte—the smallest chunk that can be fetched or stored in one memory operation. A byte is 8 bits, so each address gives you 8 bits of data. If you need a larger piece of data, like a word, you read several consecutive bytes and combine them.

This is why a word is not the addressable unit in this scheme: a word is simply multiple bytes grouped together, depending on the architecture. A nibble (4 bits) or a single bit isn’t the addressable unit here either in standard byte-addressable memory.

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